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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to soil microorganisms

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to soil microorganisms
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

The performance of the toxicity to soil microorganisms test was scientifically not justified.

Key value for chemical safety assessment

Additional information

In accordance to Column 2 REACH Annex IX 9.4.2, can be waived if the substance has no high potential to adsorb to soil and is not very persistent and if direct and indirect exposure of the soil compartment is unlikely. Direct and indirect exposure of the soil compartment is unlikely as the substance hydrolyses upon contact with water into cation and persulfate anion. Decomposition rates increase with decreasing pH value and increasing temperature. The persulfate anion, independent of the cation, undergoes further decomposition in normal water or acid conditions, readily oxidising water to oxygen, producing sulphate and hydrogen ions. All persulfate decomposition products are ubiquitous to the environment. Hydrolysis is metal catalysed, and rapid reaction with organic matter is also possible. Thus persulfates are not expected to be distributed into soil and consequently, also not to cause toxicity to microorganisms. Therefore, testing for effects on soil microorganisms is scientifically not justified.